HTTP to HTTPs?

I can’t find a way to automatically redirect all http links to the https version of it.

This is my current cache:
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Thanks

https://wordpress.org/plugins/wp-super-cache/